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Subject: Bitboard question

Author: Jarkko Pesonen

Date: 06:21:17 07/07/03

In Crafty bitboard function FirstOne gives 12 and LastOne gives 53.
Is there fast implementation for LeftOne and RightOne, which
would give in below case 33 and 38.
C implementation would ne appriciated.

---+---+---+---+---+---+---+---+
   |   |   |   |   |   |   |   |
---+---+---+---+---+---+---+---+
   |   |   |   |   | *P|   |   |
---+---+---+---+---+---+---+---+
   |   |   |   |   |   |   |   |
---+---+---+---+---+---+---+---+
   | *P| *P|   |   |   | *P|   |
---+---+---+---+---+---+---+---+   0x0080000062000400
   |   |   |   |   |   |   |   |
---+---+---+---+---+---+---+---+
   |   |   |   |   |   |   |   |
---+---+---+---+---+---+---+---+
   |   |   |   |*P |   |   |   |
---+---+---+---+---+---+---+---+
   |   |   |   |   |   |   |   |
---+---+---+---+---+---+---+---+

thanks in advance

Jarkko

• Re: Bitboard question Robert Hyatt 07:26:38 07/07/03
  • Re: Bitboard question Jarkko Pesonen 09:04:19 07/07/03
    • Re: Bitboard question Robert Hyatt 20:10:18 07/07/03
• Re: Bitboard question Gerd Isenberg 06:55:26 07/07/03
  • Re: Bitboard question Vincent Diepeveen 07:13:42 07/07/03
    • Re: Bitboard question Gerd Isenberg 07:27:55 07/07/03
• Re: Bitboard question Vincent Diepeveen 06:45:25 07/07/03

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